ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ä³´Å»ÆÌú¿óµÄÖ÷Òª³É·ÖÊÇFexS(SΪ-2¼Û)£¬¼Èº¬ÓÐFe2+ÓÖº¬ÓÐFe3+¡£½«Ò»¶¨Á¿µÄ¸Ã´Å»ÆÌú¿óÓë100 mLµÄÑÎËáÇ¡ºÃÍêÈ«·´Ó¦(×¢:¿óʯÖÐÆäËû³É·Ö²»ÓëÑÎËá·´Ó¦)£¬Éú³É2.4 gÁòµ¥ÖÊ¡¢0.425 mol FeCl2ºÍÒ»¶¨Á¿H2SÆøÌ壬ÇÒÈÜÒºÖÐÎÞFe3+¡£ÔòÏÂÁÐ˵·¨ÕýÈ·µÄÊÇ (¡¡¡¡)
A. 100 mLµÄÑÎËáÖÐHClµÄÎïÖʵÄÁ¿Å¨¶ÈΪ7.5 mol¡¤L-1
B. Éú³ÉµÄH2SÆøÌåÔÚ±ê×¼×´¿öϵÄÌå»ýΪ2.24 L
C. ¸Ã´Å»ÆÌú¿óFexSÖУ¬x=0.85
D. ¸Ã´Å»ÆÌú¿óFexSÖУ¬Fe2+ÓëFe3+µÄÎïÖʵÄÁ¿Ö®±ÈΪ3¡Ã1
¡¾´ð°¸¡¿C
¡¾½âÎö¡¿
n£¨S£©==0.075mol£¬¸ù¾ÝתÒƵç×ÓÊغãµÃn£¨Fe3+£©==0.15mol£¬Ôòn£¨Fe2+£©=0.425mol-0.15mol=0.275mol£¬ËùÒÔFe2+ÓëFe3+µÄÎïÖʵÄÁ¿Ö®±È=0.275mol£º0.15mol=11£º6£»
A£®ÑÎËáÇ¡ºÃ·´Ó¦Éú³ÉFeCl20.425mol£¬¸ù¾ÝÂÈÔ×ÓÊغãµÃc£¨HCl£©==8.5mol/L£¬¹ÊA´íÎó£»
B£®¸ù¾ÝÇâÔ×Ó¡¢ÂÈÔ×ÓÊغãµÃn£¨H2S£©=n£¨HCl£©=n£¨FeCl2£©=0.425mol£¬V£¨H2S£©=0.425mol¡Á22.4L/mol=9.52L£¬¹ÊB´íÎó£»
C£®FexSÖÐn£¨S£©=0.075mol+0.425mol=0.5mol£¬n£¨Fe£©=0.425mol£¬ËùÒÔn£¨Fe£©£ºn£¨S£©=0.425mol£º0.5mol=0.85£¬ËùÒÔx=0.85£¬¹ÊCÕýÈ·£»
D£®¸ù¾ÝתÒƵç×ÓÊغãµÃn£¨Fe3+£©==0.15mol£¬Ôòn£¨Fe2+£©=0.425mol-0.15mol=0.275mol£¬ËùÒÔFe2+ÓëFe3+µÄÎïÖʵÄÁ¿Ö®±È=0.275mol£º0.15mol=11£º6£¬¹ÊD´íÎó£»
´ð°¸Ñ¡C¡£
¡¾ÌâÄ¿¡¿£¨Ò»£©ïØ¡¢Îø¡¢¹èµÈÔªËصĻ¯ºÏÎïÊÇÉú²úµÚÈý´úÌ«ÑôÄܵç³ØµÄÖØÒª²ÄÁÏ¡£ÒÑÖª£ºSeO2ÔÚ³£ÎÂÏÂÊÇ°×É«µÄ¾§Ì壬ÈÛµãΪ340-350¡æ£¬ÔòSeO2¾§ÌåÊôÓÚ____¾§Ì壬SeO2ÖÐSeÔ×Ó²ÉÈ¡µÄÔÓ»¯ÀàÐÍΪ___¡£
£¨¶þ£©A¡¢X¡¢Y¡¢Z¡¢W¡¢M¡¢GµÈÔ×ÓÐòÊýÒ»´ÎÔö´óµÄÇ°ËÄÖÜÆÚÔªËØ
ÔªËØ | Ïà¹ØÐÅÏ¢ |
A | Ô×ÓºËÍâµç×Ó×ÜÊýÓëÆäÖÜÆÚÊýÏàͬ |
X | ÆäÐß̬Ô×ÓµÄL²ãÖÐÓÐ3¸öδ³É¶Ôµç×Ó |
Y | Üõ̬Ô×ÓµÄ2p¹ìµÀÉÏÓÐÒ»¸öµç×ÓµÄ×ÔÐý·½ÏòÓë2p¹ìµÀÉÏÆäËüµç×ÓµÄ×ÔÐý·½ÏòÏà·´ |
Z | Ô×ÓºËÍâpµç×ÓÊý±Èsµç×ÓÊý¶àl¸ö |
W | Ô×ӵĵÚÒ»ÖÁµÚËĵçÀëÄÜ(kJ¡¤mol-1)·Ö±ðÊÇ£ºI1=578£¬I2=1817 I3£½2745 I4=11575 |
M | ÔªËصÄÖ÷×åÊýÓëÖÜÆÚÊýÏà²î4 |
G | Æä»ù̬Ô×Ó×îÍâ²ãµç×ÓÊýΪ1£¬ÆäÓà¸÷µç×Ó²ã¾ù³äÂúµç×Ó |
£¨1£©»³öW»ù̬Ô×ӵĺËÍâµç×ÓÅŲ¼Í¼______¡£
£¨2£©A2YµÄVSEPRÄ£ÐÍÃû³ÆΪ____¡£
£¨3£©ÒÑ֪ΪX2Y·Ö×ÓÖÐYÔ×ÓÖ»ÓëÒ»¸öXÔ×ÓÏàÁ¬£¬Çë¸ù¾ÝµÈµç×ÓÔÀí£¬Ð´³öX2YµÄµç×Óʽ____¡£
£¨4£©X¡¢GÐγɵÄijÖÖ»¯ºÏÎïµÄ¾§°û½á¹¹ÈçͼËùʾ£¬ÔòÆ仯ѧʽΪ______¡£
£¨5£©ÒÑÖªZºÍMÐγɵĻ¯ºÏÎïµÄ¾§ÌåÃܶÈΪpg¡¤cm-3£¬°¢·ü¼ÓµÂÂÞ³£Ð§ÎªNA£¬¸Ã¾§ÌåÖÐÁ½¸ö¾àÀë×î½üµÄZÀë×ÓÖÐÐļä¾àÀëΪ_____cm¡£